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pshichka [43]
3 years ago
7

Find the vertex of the equation x2-4x+5=0

Mathematics
1 answer:
amid [387]3 years ago
4 0

Answer:

(2, 1).

Step-by-step explanation:

x^2 - 4x + 5 = 0

(x - 2)^2 - 4 + 5 = 0

(x - 2)^2 + 1 = 0

The vertex is  at (2, 1).

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Let D be the event that a randomly chosen person has seen a dermatologist. Let S be the event that a randomly chosen person has
SSSSS [86.1K]

Given:

D be the event that a randomly chosen person has seen a dermatologist.

S be the event that a randomly chosen person has had surgery for skin cancer.

To find:

The correct notation for the probability that a randomly chosen person has had surgery for skin cancer, given that the person has seen a dermatologist.

Solution:

Conditional probability: Probability of A given B is:

P(A|B)=\dfrac{P(A\cap B)}{P(B)}

Let D be the event that a randomly chosen person has seen a dermatologist.

Let S be the event that a randomly chosen person has had surgery for skin cancer.

Using the conditional probability, the correct notation for the probability that a randomly chosen person has had surgery for skin cancer, given that the person has seen a dermatologist is P(S|D).

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8 0
3 years ago
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Daniel [21]
Your answer would be ( -12/5 x + 2 )
6 0
3 years ago
A new photocopier works 4 times as fast as an old one. When the machines work together, a university can produce all its staff m
Usimov [2.4K]

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The new photocopier can make all the manuals in 4/140 or 35 hours.

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3 years ago
Sectors of circle. east points, this is due tomorrow help is appreciated
PSYCHO15rus [73]

By knowing the circumference of the base of the cone, we see that the radius is 4 centimeters.

<h3>How to find the radius of the cone?</h3>

Notice that in the first figure, the length of the arc AB is L = 8π cm.

Then, that arc will be the bottom part of the cone. Then we can see that the circumference of the base of the cone will be equal to the length of the arc.

And remember that for a circle of radius R (like the base of the cone), the circumference is:

C = 2πR.

Then we will get:

8π cm = C =  2πR

( 8π cm)/ 2π = R

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The radius of the cone is 4cm.

If you want to learn more about circles:

brainly.com/question/1559324

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5 0
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notka56 [123]

Answer:

96 ft^2.

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Area of shaded region = area of the original rectangle - area of the one removed

= 8 * 16 - 8*4

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2 years ago
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